Which of the following statement is true a. there is more water earth now there was millions of years ago b. there is less water on earth then there was millions of years ago c. there is no way to tell how much water was on earth millions of years ago d. they are the same amount of water on earth now there was millions of years ago

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?